const cloud = require('wx-server-sdk');

cloud.init({
    env: cloud.DYNAMIC_CURRENT_ENV
});
const db = cloud.database();

// 获取openId云函数入口函数
exports.main = async (event, context) => {
    //增加新的记录
    return await db.collection("history").add({
        data: {
            _openid: event.openid,
            history: []
        }
    })
};